Finding the Fourth Proportional to 1,498.90, 2,067.54 and 1,072.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.90 : 2,067.54 = 1,072.74 : x
2. Step 2: Convert to fraction form
   1,498.90/2,067.54 = 1,072.74/x
3. Step 3: Cross multiply
   1,498.90x = 2,067.54 × 1,072.74
4. Step 4: Simplify right side
   1,498.90x = 2,217,932.86
5. Step 5: Solve for x
   x = 2,217,932.86/1,498.90
6. Step 6: Final answer
   x = 1,479.71